So if you're correct about the changes to the 72V version, adapting this firmware should be a no-brainer. Nice!casainho wrote: ↑Nov 30, 2017 8:47 pmSo, I own a S12S (S12P moded to S12S) and I it works very well with current firmware. The 72V version I don't know which changes are between the 48V and 72V versions, but I would say only the voltage resistor that reads the battery voltage (not counting with changes on capacitors, etc to handle the higher voltage). That difference I think you will be able to find using a multimeter.
I think someone will want to use the most powerful version of this controllers, and would be great to get knowledge on how to use them. I think Kunteng sells even an higher current version than BMSBattery sells. But go with BMSBattery if you can, because no BMSBattery versions may have some significant changes in hardware, mainly on the available cables/inputs to the microcontroller.
Your P-to-S mod and geofft's mention of the S09 has also piqued my interest. BMSB offers a S09PP 72V 1kW controller which comes in a smaller case, which would be perfect for me. So now I, too, wonder if that one can also be modded into a sine controller. Unlike the others, this one doesn't have an official sine version.